Five-dimensional seismic gather denoising method and device based on relative offset domain

By calculating the average value of adjacent seismic channels in the relative artillery inspection domain for denoising, the problem of denoising in the prior art resulting in reduced lateral resolution is solved, and a five-dimensional seismic data processing with a higher signal-to-noise ratio is achieved.

CN119846716AActive Publication Date: 2025-04-18CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202311339159.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-10-16
Publication Date
2025-04-18
Estimated Expiration
2043-10-16

AI Technical Summary

Technical Problem

The existing seismic channel set denoising method will reduce the lateral resolution of seismic data during the denoising process, and high-frequency information is easily destroyed.

Method used

The five-dimensional seismic channel set denoising method based on the relative artillery inspection domain is adopted, and the denoising process is performed by constructing the relative artillery inspection domain and calculating the average value of adjacent seismic channels.

Benefits of technology

This method not only protects the azimuth anisotropy and amplitude of the five-dimensional seismic data with offset distance, but also does not reduce any spatial resolution, providing higher signal-to-noise ratio five-dimensional seismic data for subsequent processing and interpretation.

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Abstract

The invention discloses a five-dimensional seismic gather denoising method and device based on a relative offset domain, and the method comprises the steps: obtaining a plurality of five-dimensional seismic gathers from a five-dimensional seismic gather data body; constructing a relative offset domain of the five-dimensional seismic gather; in the relative offset domain, adjacent seismic traces of the multiple sampling points are obtained through calculation, the average value of the multiple adjacent seismic traces is calculated, and denoising is completed. The method not only protects the azimuthal anisotropy of the five-dimensional seismic data and the characteristic that the amplitude changes along with the offset, but also does not reduce any spatial resolution, provides the five-dimensional seismic data with a higher signal-to-noise ratio for subsequent processing and interpretation, and can more accurately carry out oil and gas detection.
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Citation Information

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